WO2020073998A1

WO2020073998A1 - Method for controlling video color ring back tone in call and related apparatus

Info

Publication number: WO2020073998A1
Application number: PCT/CN2019/110737
Authority: WO
Inventors: 孟斌
Original assignee: 华为技术有限公司
Priority date: 2018-10-12
Filing date: 2019-10-12
Publication date: 2020-04-16
Also published as: CN111049995A

Abstract

Provided are a method for controlling a video color ring back tone in a call and a related apparatus. The method of the embodiments comprises: a calling user equipment sending, to a color ring back tone server, a request message of disabling a video color ring back tone in a call; the color ring back tone server receiving the disabling request message, stopping playing the video color ring back tone, and sending, to the calling user equipment, a response message of disabling the video color ring back tone; and the color ring back tone server notifying the calling user equipment to play a traditional ring back tone, or notifying a phone application server, and then notifying, by means of the phone application server, a calling side to play the traditional ring back tone, wherein the color ring back tone server may also need to carry out audio media negotiation with the calling user equipment again. According to the method for actively disabling the video color ring back tone by means of the calling user equipment provided in the embodiments of the present invention, a video color ring back tone service function is improved, and user experience of the video color ring back tone is improved.

Description

Method and related device for controlling video ring back tone in call

This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on October 12, 2018, with the application number CN201811191185.3 and the application name as "a method and related device for controlling video ringback tone in call", The entire contents are incorporated by reference in this application.

Technical field

The present application relates to the field of multimedia services, and in particular, to a method and related device for controlling video ring back tone in a call.

Background technique

With the introduction of voice services based on the Internet Protocol Multimedia Subsystem (IMS), the quality of voice calls has been significantly improved compared to the 2 / 3G era. HD voice calls and video calls can be provided. Carrier's important voice value-added services, compared with the standard definition CRBT experience under 2 / 3G, the IMS-based CRBT service can provide HD CRBT and video CRBT experiences.

Video CRBT means that when the caller initiates an audio or video call to the called CRBT user, he can see a piece of video content while waiting for the call to connect. Video CRBT users can create or upload personalized video content, or choose from the operator's video library. Under the current video ring back tone solution, the video ring back tone only ends when the called video ring back tone user picks up the phone, the call ends automatically because it has not been connected for a long time, or the calling user hangs up directly. The function is not perfect, which affects the user experience of video CRBT.

Summary of the invention

Embodiments of the present invention provide a method and device for controlling video ring back tone in a call, which is used to define a process of how a calling party turns off video ring back tone, implements the function of calling party to turn off video ring back tone, and improves user experience of video ring back tone .

In a first aspect, an embodiment of the present invention provides a method for controlling a video color ring back tone in a call, which may include: the calling user equipment sends a request message to close the video color ring back call to the color ring back tone server, and then receives the closed video returned by the color ring back tone server After the response message of the CRBT, according to the response message, stop playing the video CRBT. Based on this solution, the calling user device can choose whether to watch the video ring back tone according to its own wishes, and provides the caller with a method to actively close the video ring back tone, which improves the video ring back tone service.

Optionally, the request message for closing the video color ring back tone in the call may be an update message, and the Update message carries an instruction to close the video color ring back tone. Optionally, the indication in the Update message may be that the port number of the audio and video media line of the carried Session Description Protocol (SDP) is 0. Based on this solution, the existing Session Initiation Protocol (SIP) message is used to define the process of closing the video ring back tone, and does not affect the existing color ring back triggering process.

Optionally, the calling user equipment receives the indication message for playing the traditional ringback tone, and plays the traditional ringback tone according to the indication message. The indication message may be 180 messages. Based on this solution, when the calling user equipment stops playing the video ringback tone, the traditional ringback tone is played on the calling user equipment, which improves the user experience.

Optionally, before receiving the indication message for playing the traditional ringback tone, the calling user equipment negotiates the SDP with the color ring back tone server or the telephone application server. When this call uses the local end to play the ringback tone, there is no need to renegotiate SDP; and when this call uses the network end to play, the calling user equipment negotiates SDP with the CRBT server or the telephone application server, Ensure that the traditional ringback tone can be played normally.

In a second aspect, an embodiment of the present invention provides a method for controlling a video color ring back tone in a call, which may include: a color ring back tone server receiving a request message sent by a calling user equipment to close the video color ring back tone in a call, stopping playing the video color ring back tone, and releasing the media Resources, and send a response message to the calling user equipment to close the video ring back tone. Based on this solution, the calling party is provided with a method to actively close the video ring back tone, which improves the video ring back tone service.

Optionally, the request message for closing the video color ring back tone in the call may be an update message, and the Update message carries an instruction to close the video color ring back tone. Optionally, the indication in the Update message may be that the port number of the SDP audio and video media lines carried is 0. When the color ring back tone server receives such an Update message, it is determined that the message is a request message to turn off the video color ring back tone. Based on this solution, the existing SIP message is used to define the process of turning off the video color ring back tone, and does not affect the existing color ring back tone triggering process.

Optionally, after receiving the request message to close the video ring back tone, the color ring back tone server will also query the permission configuration. The permission configuration may be derived from the called user's subscription information. When the permission configuration allows the video ring back tone to be turned off, the color ring back tone server stops playing the video ring back tone And send a response message to the calling user equipment to turn off the video ring back tone. Optionally, when the permission configuration does not allow the video color ring back tone to be turned off, the color ring back tone server sends an error prompt to the calling user device to notify the calling user device that the video color ring back tone has failed to close. Based on this solution, the permission issue of video ring back tone is considered, which makes the video ring back tone service function more perfect. For example, when ordering a video ring back tone is used as a method of advertising, the calling party may be refused to turn off the video ring back tone.

Optionally, the CRBT server sends an indication message to the calling user equipment to play a traditional ringback tone, and the indication message may be a 180 message. Based on this solution, when the calling user equipment has stopped playing the video color ring back tone, the traditional ring back tone is played on the calling user equipment, which improves the user experience.

Optionally, the color ring back tone server negotiates the SDP with the calling user before sending an instruction message to play the traditional ringback tone to the calling user equipment. When this call uses the local end to play back ringtones, there is no need to renegotiate SDP; and when this call uses the network end to play back voice, the ring back tone server negotiates SDP with the calling user equipment to ensure traditional ringback The sound can be played normally.

Optionally, the color ring back tone server sends an INFO message to the phone application server. The phone application server receives the INFO message, finds the call according to the INFO message, and sends an instruction message to the calling user device to play a traditional ringback tone. The instruction message can be It's 180 messages. Based on this solution, it can support the use of the network side (telephone application server) to play traditional ringback tones for the calling user equipment.

Optionally, the telephony application server negotiates SDP with the calling user equipment before sending the indication message of playing the traditional ringback tone to the calling user equipment. When this call uses the local end to play the ringback tone, there is no need to renegotiate SDP; and when this call uses the network end to play, the telephone application server negotiates SDP with the calling user equipment to ensure the traditional call back The ring tone can be played normally.

In a third aspect, an embodiment of the present invention provides a calling user equipment that controls a video color ring back tone in a call, and the calling user equipment has a function of implementing the method corresponding to the first aspect described above. This function can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

According to a fourth aspect, an embodiment of the present invention provides a calling user equipment for controlling a video color ring back tone in a call, which may include: a transceiver, a processor, a memory, and a bus; the memory is used to store computer execution instructions, and the processor and The memory is connected through the bus, and when the calling user equipment is running, the processor executes the computer execution instructions stored in the memory, so that the calling user equipment executes the control call as described in any one of the first aspects above The method of video ring back tone.

According to a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium having instructions stored therein, which when run on a computer, enables the computer to execute any of the above-mentioned first aspects Method for controlling video ring back tone in a call. The storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and other media that can store program codes.

According to a sixth aspect, an embodiment of the present invention provides a computer program product containing instructions that, when run on a computer, enable the computer to execute any one of the above methods for controlling video ring back tone in a call.

The technical effects brought by any one of the design methods in the third aspect to the sixth aspect can be referred to the technical effects brought by the different design methods in the first aspect, which will not be repeated here.

According to a seventh aspect, an embodiment of the present invention provides a color ring back tone server for controlling a video color ring back tone in a call. The color ring back tone server has a function of implementing the method corresponding to the second aspect described above. This function can be realized by hardware, and can also be realized by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.

According to an eighth aspect, an embodiment of the present invention provides a color ring back tone server for controlling video ring back tone in a call, which may include: a transceiver, a processor, a memory, and a bus; the memory is used to store computer execution instructions, and the processor and the memory Through the bus connection, when the CRBT server is running, the processor executes the computer execution instruction stored in the memory, so that the CRBT server executes the method for controlling the video CRBT in any of the above-mentioned second aspects .

In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium having instructions stored therein, which when run on a computer, enables the computer to execute any of the above-mentioned second aspects Method for controlling video ring back tone in a call. The storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

According to a tenth aspect, an embodiment of the present invention provides a computer program product containing instructions that, when run on a computer, enable the computer to execute any method for controlling video ringback tone in a call according to any one of the second aspect above.

The technical effects brought by any one of the design methods in the seventh aspect to the tenth aspect can be referred to the technical effects brought by the different design methods in the second aspect, which will not be repeated here.

These or other aspects of the present application will be more concise and understandable in the description of the following embodiments.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of a system architecture provided in an embodiment of the present invention;

2 is a schematic diagram of an embodiment of a method for controlling a video color ring back tone in a call in an embodiment of the present invention;

3 is a schematic diagram of another embodiment of a method for controlling a video color ring back tone in a call in an embodiment of the present invention;

4 is a schematic diagram of another embodiment of a method for controlling a video color ring back tone in a call in an embodiment of the present invention;

5 is a schematic diagram of an embodiment of a calling user equipment according to an embodiment of the present invention;

6 is a schematic diagram of an embodiment of a color ring back tone server according to an embodiment of the present invention;

7 is a schematic diagram of another embodiment of a calling user equipment according to an embodiment of the present invention;

8 is a schematic diagram of another embodiment of a color ring back tone server in an embodiment of the present invention.

detailed description

The embodiment of the present invention provides a method and device for controlling a video color ring back tone in a call, which is used to turn off the video color ring back tone in the call and fall back to the traditional playback mode to realize the function of controlling the video color ring back tone in the call.

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of the present invention, but not all the embodiments. The network architecture described in the embodiments of the present invention is to more clearly explain the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those of ordinary skill in the art may know that as the network architecture evolves The technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

FIG. 1 is an application scenario diagram of a method for controlling a video CRBT in a call according to an embodiment of the present invention, which may include: a calling user equipment (UE), a called UE, an IMS domain core network (IMS Core), and an evolved packet core network (EvolvedPacketCore, EPC). The color ring back tone server, as an important telecommunications value-added business support, may include a color ring back tone application server (Customized Alerting Tone Application Server, CAT AS), located in the called IMS Core. The signalling plane of the CRBT server is connected to the service type call session control function (Serving-Call Session Control, Function, S-CSCF), and the media plane is connected to the session border control (Session Border Controller, SBC) to provide users with the media playback of CRBT sound.

In the architecture diagram shown in FIG. 1, the calling IMS domain may include the calling IMS Core and EPC. The calling IMS Core includes: Home Subscriber Server (HSS), Telephony Application Server (TAS), interrogating-call session control function (I-CSCF), proxy Type of call session control function (Proxy-Call session Control Function, P-CSCF), service type call session control function (Service-Call session Control Control Function, S-CSCF) and session border control (Session Border Controller, SBC). EPC includes a service gateway (Serving Gateway, S-GW), a packet data network gateway (Public data network Gateway, P-GW); and a mobile management entity (Mobile Management Entity, MME). In addition to the network elements described in the calling IMS domain, the called IMS domain also includes CAT AS.

The following is a brief description of some of the network elements mentioned above:

S-CSCF: Responsible for user registration, authentication control, session routing and service trigger control, and maintain session state information.

I-CSCF: Responsible for the assignment and query of S-CSCF registered by users.

P-CSCF: Mainly responsible for signaling and message proxy.

TAS: Mainly responsible for call control and service, providing multiple logical function points, including Multimedia Telephony Application Server (MMTel AS). MMTel AS provides basic and supplementary services for multimedia telephony.

HSS: is a user database system that stores user subscription information and location information.

SBC: Provide secure access and media processing.

MME: Mainly responsible for session management, mobility management and call switching.

S / P-GW: responsible for packet data routing, forwarding, and bearer management.

CAT AS: It is the service equipment of the CRBT service. It is responsible for connecting the called party and triggering the CRBT playback when the CRBT is called.

Brief introduction of SIP routing trigger of CRBT in IMS domain:

The IMS domain ring back tone trigger mainly follows the 3GPP 24.182 protocol specification, and uses the called IMS domain triggering principle. When the Invite message initiated by the calling IMS domain is sent to the called IMS domain S-CSCF, the called S-CSCF passes The initial filter rule (iFC) subscription information is triggered to the CRBT server. After the CRBT server processes the call message, the call message returns to the S-CSCF to continue the subsequent call process. After receiving the called ringing message (180), the CRBT server starts the playback process to the calling user. When the called party goes off-hook, the CRBT server initiates a Re-Invite process to complete the media between the calling and the called party Negotiation, and finally complete the call between the calling and called users.

In the prior art, only after the called video CRBT user picks up the phone or when the call ends automatically because the call has not been connected for a long time, the video CRBT will stop playing, which affects the user experience of the video CRBT. In the technical solution of the present invention, a method and device for controlling the video ring back tone in a call are proposed, so that the calling user can turn off the video ring back tone and return to the traditional playback mode during the call, which improves the business process of the video ring back tone. And improve the user experience of video color ring back tone. Based on the existing video color ring back tone calling process, the present invention uses the existing SIP message flow to define the process of closing the video color ring back tone. One method is that the calling UE sends a request message to turn off the video ring back tone in the call to the ring back tone server. In response to the request, the ring back tone server turns off the video ring back tone and notifies the calling UE to play the traditional ring back tone. The other is that the calling UE sends a request message to the CRBT server to turn off the video CRBT. In response to the request, the CRBT server turns off the video CRBT and notifies the phone application server (network side), and then the phone application server notifies the calling UE to play the traditional Ringback tone. Compared with the two methods, the second method is that the calling application server notifies the calling UE to play the traditional ringback tone, which can support the network side to play the ringback tone.

The technical solutions of the present invention will be described below by way of examples. The following description takes an audio call as an example, but any other type of communication service or multimedia service, such as a video call, is also applicable.

As shown in FIG. 2, it is a schematic diagram of an embodiment of a method for controlling a video color ring back tone in an embodiment of the present invention. The method for controlling video ring back tone in a call provided in an embodiment of the present invention may be applied in the application scenario provided in FIG. 1 described above, and CAT AS is used as a ring back tone server for illustration in the following schematic diagram of the embodiment. The embodiments of the present invention include:

201. The calling UE initiates a call to the called UE and completes the resource reservation of the calling UE and the called UE; 202. The calling UE and the CRBT server complete the process of audio / video CRBT media SDP negotiation; 203. The calling UE Play color ring back tone; 204, turn off color ring back tone; 205, play traditional ring back tone.

The specific signaling steps are described as follows:

201. The calling UE initiates a call to the called UE and completes the resource reservation of the calling UE and the called UE;

Specifically, it may include:

1 ~ 4: The calling UE sends a call request, that is, an Invite message. The Invite message includes the calling UE's Session Description Protocol (SDP); after the CSCF network element in the called IMS domain receives the request, according to the operator User-configured initial filtering rules (iFC rules) to forward Invite messages to the CRBT application server CAT AS; after CAT AS completes message processing, returns the processed Invite messages to CSCF; CSCF continues to execute iFC rules to forward Invite messages to The telephone application server TAS; TAS completes the message processing, returns the processed Invite message to the CSCF; CSCF forwards the Invite message to the called UE;

5 to 8: The called UE receives the Invite message and returns a 183 message. The 183 message indicates that the called UE has received the call request message, and the 183 message includes the called SDP. The 183 message will be sent to the calling UE along the path taken by the Invite message;

9 ～ 12: The calling UE sends an acknowledgement (PRACK) message to the called UE, indicating that the 183 message has been received;

13-16: The called UE returns a 200OK message to the calling UE, and the 200OK message carries PRACK information, indicating that the called side has received the PRACK message; the calling UE receives the 200OK message;

17-23: The calling UE sends an Update message to the called UE, indicating that the calling side has completed the establishment of the media channel. The called side returns a 200 OK message to the calling side. This section of the process is in Gateway Precondition (gateway precondition) mode, and there is no such section in Gateway no-Precondition (gateway non-precondition) mode;

24 to 26: The called UE sends a 180 message to the CSCF, indicating that the called UE has started ringing. CSCF forwards 180 messages to TAS and CAT AS.

202. The calling UE and CAT AS complete the audio / video CRBT media SDP negotiation process. Specifically, it may include:

27 ～ 30: After receiving the 180 message, the CAT AS sends an Update message to the calling UE. The Update message carries audio / video CRBT media SDP information. The audio / video CRBT media SDP information may also be called audio / video CRBT media negotiation information; The calling UE receives the Update message. If the calling UE supports audio / video CRBT media, the audio / video media negotiation is conducted according to the audio / video CRBT media SDP information carried in the Update message and the calling UE's media capability information to determine the audio / video media Video media negotiation results, and send a 200OK message to CAT AS, the 200OK message carries the audio / video media negotiation results;

It should be understood that the audio / video media negotiation results here are carried by the SDP protocol, and the audio / video media negotiation results include, but are not limited to, audio / video CRBT media information supported by the calling UE, and the calling UE receives audio / video Information about the media's Internet protocol IP address, audio / video channel port number, and audio / video encoding / decoding information.

The following describes the SDP information of the video CRBT in the form of an example, as follows:

v = 0 / * protocol version information, here is the SDP version number is 0 * /

o = HuaWei 419 419 IN IP4 10.137.2.197/*Owner/creator and session identifier (here the user name of the session initiator is HuaWei; session identifier is 419; session version is 419; network type is "IN", Means "Internet"; the address type currently defines "IP4" and "IP6", here is IP4; the address is 10.137.2.197.) * /

s = SipCall / * Session name ("s =" field indicates the session name, here is SipCall) * /

c = IN IP4 10.135.66.188/* connection information (network type: IN identification is "Internet", address type: IP4, connection address: 10.135.66.188) * /

t ＝ 0 0 / * Session active time (start and end time are 0, which means that it is a persistent session) * /

m = audio34318RTP / AVP104 / * Start audio media information description. Audio media data will be sent to port 34318, the sending protocol is RTP protocol based on UDP, the format is 104 (dynamic RTP payload type) * /

a = rtpmap: 104 AMR-WB / 16000 / * The payload type 104 is explained, it is AMR-WB encoding method, the sampling clock is 16000Hz * /

a = ptime: 20 / * Media stream packaging time, here is 20ms * /

a = maxptime: 240 / * the maximum duration of media stream packaging, here is 240ms. * /

m = video 5098 RTP / AVP 102 / * Start video media information description. Video media data will be sent to port 5098, the sending protocol is based on UDP RTP protocol, the format is 102 * /

a = rtpmap: 102 H264 / 90000 / * The payload type 102 is explained, which is the H264 encoding method, and the sampling clock is 90000Hz * /

a = fmtp: 102 profile-level-id = 42801F; packetization-mode = 0 / * The parameter of the load type 102 is further given as “profile-level-id = 42801F; packetization-mode = 0”. * /

203. The calling UE plays the CRBT. Specifically, it may include:

31 ~ 32: CAT AS sends 180 messages to the calling UE. CAT AS sends video CRBT media to the calling UE, and the calling UE plays the video CRBT.

204. Turn off the ring back tone. Specifically, it may include:

33 ～ 34: The calling UE sends a request message to CAT AS to close the video ring back tone, with an instruction to close the video ring back tone. The request message may be an Update message, where the SDP in the Update message duplicates the content negotiated by the SDP audio / video CRBT media, and sets the port numbers of the audio media description m line and the video media description m line in the SDP content to 0, Use this as an instruction to turn off the video ring back tone.

For example, in the video color ring back tone SDP information, the audio media description line m = audio 34318 RTP / AVP 104 and the video media description line m = video 5098 RTP / AVP 102 are respectively modified to m = audio 0 RTP / AVP 104 and m = video 0 RTP / AVP 102.

35 ~ 36: After the CAT AS receives the Update message, when the Update message carries an instruction to close the video ring back tone, that is, the port numbers of the audio media description line m and the video media description line m in the SDP content of the Update message are both set to 0, CAT The AS determines that the message is a request message to close the video ring back tone. CAT AS stops sending audio / video media streams and stops playing video ringback tones. And the CAT AS sends a 200 OK message to the calling UE in response to the calling UE's shutdown request. The calling UE stops playing the video ringback tone.

205. Play a traditional ringback tone. Specifically, it may include:

If the current call uses the local end to play the ringback tone, the CAT AS sends a 180 message to the caller, and the 180 message carries PEM = inactive, indicating that the network side does not play the ringback tone, and instructs the calling UE to play the traditional ringback tone; If the current call uses the network side to play the ringback tone, CAT AS and the calling UE re-conduct SDP media negotiation, that is, play the traditional ringback tone for the calling UE to do media negotiation. The result of the media negotiation includes but is not limited to the information of the audio media supported by the calling UE. The calling UE receives the Internet Protocol IP address of the audio media, the information of the audio channel port number, and the information of audio encoding / decoding. After the SDP negotiation is completed, the CAT AS sends a 180 message to the calling UE. The 180 message carries PEM = inactive, indicating that the network side no longer plays the ringback tone, and the calling UE plays the traditional ringback tone. Optionally, when the CAT AS sends a 180 message to the calling party, the 180 message carries the SDP information of the CAT AS, directly initiates SDP offer negotiation, and conducts SDP media negotiation with the calling UE. After the negotiation is completed, the calling UE plays the traditional Ringback tone.

In the embodiment of the present invention, after the calling UE initiates a call and plays a video CRBT, the calling UE sends a request message to the CRBT server to close the video CRBT in the call, and the CRBT server responds to the request and turns off the video CRBT, and the CRBT server Inform the calling UE to play the traditional ringback tone. The present invention solves the limitation that the video color ring back tone will only end when the called UE picks up the phone or the call ends automatically because the call has not been connected for a long time. Based on the technical solution of the present invention, the calling UE can be provided to actively close the video color ring back tone Method, and play the traditional ringback tone for the calling user when the video ring back tone is closed, which improves the video ring back tone service function and improves the user experience of the video ring back tone.

As shown in FIG. 3, it is a schematic diagram of another embodiment of a method for controlling a video ring back tone in a call in an embodiment of the present invention. In the embodiment of the present invention, 301 to 304 correspond to 201 to 204 in FIG. 2, respectively, to complete resource reservation for initiating an audio call, audio / video media negotiation, playing color ring back tone and closing video color ring back tone processes, which will not be repeated here. The following specifically describes the process of playing the traditional ringback tone.

305. Play a traditional ringback tone. Specifically, it may include:

37 ~ 38: CAT AS sends an INFO message to TAS to notify TAS (network side) to take over the playback of the calling UE's ringback tone. The INFO message contains the calling and called numbers. TAS receives the INFO message and finds the corresponding call to close the video ring back tone according to the calling and called numbers.

If the current call uses the local end to play the ringback tone, the TAS sends a 180 message to the calling UE, and the 180 message carries PEM = inactive, indicating that the network side does not play the ringback tone, indicating that the calling UE plays the traditional ringback tone; If the current call uses the network side to play the ringback tone, TAS and the calling UE re-conduct SDP media negotiation, that is, play the traditional ringback tone for the calling UE to do media negotiation. The result of the media negotiation includes but is not limited to the information of the audio media supported by the calling UE. The calling UE receives the Internet Protocol IP address of the audio media, the information of the audio channel port number, and the information of audio encoding / decoding. After the SDP negotiation is completed, the TAS sends a 180 message to the calling UE. The 180 message carries PEM = sendonly, indicating that the network side plays a ringback tone, and the TAS plays a traditional ringback tone for the calling UE. Optionally, when the TAS sends a 180 message to the caller, the 180 message carries the SDP information of the TAS, directly initiates SDP offer negotiation, and conducts SDP media negotiation with the calling UE. After the negotiation is completed, the TAS plays the traditional call for the calling UE Ringback tone.

In the embodiment of the present invention, the calling UE sends a request message to turn off the video CRBT in the call to the CRBT server. In response to the request, the CRBT server turns off the video CRBT and notifies the TAS (network side), and then the TAS takes over the calling UE The traditional ringback tone is played to realize the function that the caller actively closes the video ringback tone. Compared with the embodiment shown in FIG. 2, TAS is introduced for processing, which can support the network side to play a ringback tone.

As shown in FIG. 4, it is a schematic diagram of another embodiment of a method for controlling video ring back tone in a call in an embodiment of the present invention. In the embodiment of the present invention, 401 to 403 correspond to 301 to 303 in FIG. 3 and 201 to 203 in FIG. 2, respectively, to complete resource reservation for initiating an audio call, audio / video media negotiation, and the process of playing color ring back tone. To repeat. The following specifically describes the process of turning off the CRBT.

404. Turn off the ring back tone. Specifically, it may include:

33 to 34: Refer to 33 to 34 in FIG. 2 and will not be repeated here.

35 ~ 36: After the CAT AS receives the Update message, when the Update message carries an instruction to close the video ring back tone, that is, the port numbers of the audio media description line m and the video media description line m in the SDP content of the Update message are both set to 0, CAT The AS determines that the message is a request message to close the video ring back tone. In this embodiment, CAT AS can also query the related permission configuration to determine whether the video ring back tone can be turned off. The permission configuration may be derived from the called user's subscription information. For example, during the called user's registration process, the TAS telephone application server retrieves the called user's subscription information and stores it locally. If the permission configuration allows the video ring back tone to be turned off, CAT AS closes the video ring back tone, responds to the 200 OK message, and notifies the calling UE to play the traditional ring back tone. For the specific signaling process, refer to Figure 2, or notify TAS (network side), and the TAS Take over and play the traditional ringback tone for the calling UE. For the specific signaling process, see Figure 3. If the user configuration information does not allow the video ringback tone to be turned off, CAT AS sends an error prompt to the calling UE to notify the calling UE that the video ringback tone is turned off. Failed, such as responding to the 606 error message, the warning header field carries "video RBT always open".

In the embodiment of the present invention, after receiving the request message from the calling UE to close the video ring back tone, the color ring back tone server will query the related permission configuration, and only when the permission allows the video ring back tone to be closed, the process of closing the video ring back tone will be performed; When the video CRBT is allowed to be turned off, the calling UE is notified of the failure to turn off. Compared with the embodiments shown in FIG. 2 and FIG. 3, the permission problem of closing the video ring back tone is considered, so that the video ring back tone service function is more perfect. For example, when an enterprise subscribes to the video ring back tone service as an enterprise promotion advertisement or the operator uses the video ring back tone service to advertise for the advertiser, etc., it does not want the video ring back tone to be turned off by the calling UE.

As shown in FIG. 5, it is a possible structural schematic diagram of the calling user equipment involved in the foregoing embodiment. The calling user equipment includes a sending module 501, a receiving module 502, and a processing module 503.

The sending module 501 is used to send a request message to close the color ring back tone of the call to the color ring back tone server. The request message may be an Update message, where the Update message carries an instruction to close the video color ring back tone, and the indication may copy the content of the SDP negotiation of the audio / video color ring back tone media in the SDP in the Update message, and describe the audio media in the SDP content in m lines and video The port numbers of line m of the media description are all set to 0. For the specific sending process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4; the receiving module 502 is used to receive a response message from the color ring back server to close the video color ring back. For the specific receiving process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4; the processing module 503 is used to stop playing the video ring back tone. For the specific process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4.

Optionally, the receiving module 502 is also used to receive an indication message for playing a traditional ringback tone, and the indication message may be a 180 message; the processing module 503 is also used for playing a traditional ringback tone according to the indication message. For the specific process, refer to 205 in FIG. 2, 305 in FIG. 3, and 404 in FIG. 4.

Optionally, the processing module 503 is further configured to negotiate the SDP with the color ring back tone server or the telephone application server after the receiving module 502 receives the response message to close the video ring back tone, and before receiving the instruction message to play the traditional ring back tone. For the specific process, refer to 205 in FIG. 2, 305 in FIG. 3, and 404 in FIG. 4.

Since the calling user equipment provided in the embodiment of the present invention can be used for a method for controlling a video color ring back tone during a call, the technical effects that can be obtained can refer to the foregoing method embodiments, and details are not described herein again.

As shown in FIG. 6, it is a schematic structural diagram of a color ring back tone server involved in the foregoing embodiment. The color ring back tone server includes a sending module 601, a receiving module 602, and a processing module 603.

The receiving module 602 is configured to receive a request message sent by the calling user equipment to close the video ring back tone in the call. The request message may be an Update message, where the Update message carries an instruction to close the video ring back tone, and the indication may be copied by the SDP in the Update message. The content of the audio / video CRBT media SDP negotiation, and the port numbers of the audio media description m line and the video media description m line in the SDP content are both set to 0. For the specific sending process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4; the processing module 603 is used to stop sending the video color ring backing media stream to the calling user equipment and stop playing the video color ring back tone. For the specific process, refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4; the sending module 601 is used to send a response message to turn off the video ring back tone to the calling user equipment. For the specific sending process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4.

Optionally, the processing module 603 is also used to query the permission configuration after the receiving module 602 receives the request message sent by the calling user device to close the video ring back tone, and when the permission configuration allows the video ring back tone to be closed, stop playing the video ring back tone; Optionally, the sending module 601 is also used to send an error prompt to the calling user equipment when the permission does not allow the video CRBT to be turned off. For the specific process, please refer to 404 in FIG. 4.

Optionally, the sending module 601 is further configured to send an indication message to the calling user equipment to play a traditional ringback tone, and the indication message may be a 180 message. For the specific process, please refer to 205 in FIG. 2 and 404 in FIG. 4.

Optionally, the processing module 603 is also used for negotiating SDP with the calling user equipment before the sending module sends the indication message of playing the traditional ringback tone to the calling user equipment. For the specific process, please refer to 205 in FIG. 2 and 404 in FIG. 4.

Optionally, the sending module 601 is further configured to send an INFO message to the phone application server, where the message carries an instruction to play a traditional ringback tone for the calling user equipment. For the specific process, please refer to 305 in FIG. 3 and 404 in FIG. 4.

Since the color ring back tone server provided by the embodiment of the present invention can be used for a method of controlling the video color ring back tone during a call, the technical effects that can be obtained can refer to the above method embodiments, and details are not described herein again.

As shown in FIG. 7, it is a schematic diagram of another embodiment of a calling user equipment according to an embodiment of the present invention. It should be noted that the calling user device may be a user's mobile phone or other mobile devices that can access the operator's wireless network, such as Internet of Things mobile devices.

7 is a block diagram showing the structure of relevant parts of the calling user equipment according to an embodiment of the present invention. 7, the calling user equipment includes: a radio frequency (Radio Frequency) circuit 710, a memory 720, an input unit 730, a display unit 740, a sensor 750, an audio circuit 760, a wireless fidelity (WiFi) module 770, Processor 780, power supply 790 and other components. Those skilled in the art may understand that the structure of the calling user equipment shown in FIG. 7 does not constitute a limitation on the calling user equipment, and may include more or fewer components than the illustration, or a combination of certain components, or different Parts layout.

The following describes the components of the calling user equipment in detail with reference to FIG. 7:

The RF circuit 710 can be used for receiving and sending signals during sending and receiving information or during a call. In particular, after receiving the downlink information of the base station, it is processed by the processor 780; in addition, the designed uplink data is sent to the base station. Generally, the RF circuit 710 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 710 can also communicate with other devices via a wireless communication network. The above wireless communication can use any communication standard or protocol, including but not limited to Global Mobile System (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division) Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), New Radio (New Radio), Email, Short Message Service (Short Messaging Service, SMS) )Wait.

The memory 720 may be used to store software programs and modules. The memory 720 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store Data created by the use of user equipment (such as audio data, phone book, etc.), etc. In addition, the memory 720 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 780 is the control center of the calling user equipment, uses various interfaces and lines to connect the various parts of the entire user equipment, runs or executes the software programs or modules stored in the memory 720, and calls the data stored in the memory 720 , Perform various functions and process data of the calling user equipment, so as to monitor the calling user equipment as a whole. Optionally, the processor 780 may include one or more processing units; optionally, the processor 780 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs Wait, the modem processor mainly deals with wireless communications. It can be understood that the foregoing modem processor may not be integrated into the processor 780.

In an embodiment of the present invention, the RF circuit 710 included in the calling user equipment further has the following function: sending a request message to turn off the video color ring back tone of the call to the color ring back tone server, the request message may be an Update message, where the Update message Carry an instruction to turn off video color ring back tone, which can copy the content negotiated by SDP in the SDP content in the Update message, and set the port numbers of audio media description m line and video media description m line in the SDP content to 0 ; Receive a response message returned by the CRBT server to close the video CRBT. For the specific process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4.

The processor 780 also has the following function: according to the response message, it stops playing the video color ring back tone. For the specific process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4.

Optionally, the RF circuit 710 is also used to receive an indication message for playing a traditional ringback tone; the processor 780 is also used for playing a traditional ringback tone according to the indication message. For the specific process, refer to 205 in FIG. 2, 305 in FIG. 3, and 404 in FIG. 4.

Optionally, the processor 780 is further configured to negotiate the SDP with the color ring back tone server or the phone application server after receiving the response message to turn off the video color ring back tone, and before receiving the instruction message to play the traditional ring back tone. For the specific process, refer to 205 in FIG. 2, 305 in FIG. 3, and 404 in FIG. 4.

As shown in FIG. 8, it is a schematic diagram of another embodiment of a color ring back tone server according to an embodiment of the present invention, including:

The CRBT server may have a relatively large difference due to different configurations or performances, and may include a transceiver 801, one or more central processing units (CPU) 802 (eg, one or more processors), and a memory 803 , One or more storage media 804 (for example, one or more mass storage devices) that store application programs 8041 or data 8042. The memory 803 and the storage medium 804 may be short-term storage or persistent storage. The program stored in the storage medium 804 may include one or more modules (not shown in FIG. 8), and each module may include a series of instruction operations on the CRBT server. Furthermore, the central processor 802 may be configured to communicate with the storage medium 804 and execute a series of instruction operations in the storage medium 804 on the CRBT server.

In an embodiment of the present invention, the transceiver 801 also has the following function: used to receive a request message sent by the calling user equipment to turn off the video color ring back tone. The request message may be an Update message, where the Update message carries an instruction to turn off the video color ring back tone. , The indication can copy the content negotiated by the SDP in the SDP in the Update message to the audio / video CRBT media, and set the port numbers of the audio media description m line and the video media description m line in the SDP content to 0; used to call the The user equipment sends a response message to close the video color ring back tone. For the specific process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4.

The central processor 802 also has the following function: used to stop sending the video color ring media stream to the calling user equipment according to the received request message for turning off the video color ring, and stop playing the video color ring. For the specific process, please refer to 204 in FIG. 2, 304 in FIG. 3, and 404 in FIG. 4.

Optionally, the central processor 802 is also used to query the permission configuration after the transceiver 801 receives the request message sent by the calling user equipment to close the video ring back tone, and when the permission configuration allows the video ring back tone to be closed, stop playing the video ring back tone; Optionally, the transceiver 801 is also used to send an error prompt to the calling user equipment when the permission does not allow the video CRBT to be turned off. For the specific process, please refer to 404 in FIG. 4.

Optionally, the central processor 802 is also used to negotiate SDP with the calling user equipment. For the specific process, please refer to 205 in FIG. 2 and 404 in FIG. 4.

Optionally, the transceiver 801 is also used to send an indication message to the calling user equipment to play a traditional ringback tone, and the indication message may be a 180 message. For the specific process, please refer to 205 in FIG. 2 and 404 in FIG. 4.

Optionally, the transceiver 801 is also used to send an INFO message to the telephone application server, where the message carries an instruction to play a traditional ringback tone for the calling user equipment. For the specific process, please refer to 305 in FIG. 3 and 404 in FIG. 4.

Those skilled in the art can clearly understand that for the convenience and conciseness of the description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a division of logical functions. In actual implementation, there may be other divisions, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software function unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention essentially or part of the contribution to the existing technology or all or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present invention. The foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still The technical solutions described in the embodiments are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A method for controlling video ring back tone in a call, characterized in that the method includes:

The calling user equipment sends a request message to close the color ring back tone of the call to the color ring back tone server;

The calling user equipment receives the response message returned by the CRBT server to close the video CRBT, and stops playing the video CRBT.
The method according to claim 1, wherein the request message is an update message, and the update message carries an instruction to turn off the video color ring back tone.
The method according to claim 1, wherein the request message is an update Update message, and the port number of the audio and video media line of the session description protocol SDP in the Update message is 0.
The method according to any one of claims 1-3, further comprising:

The calling user equipment receives an indication message playing a traditional ringback tone;

The calling user equipment plays a traditional ringback tone according to the instruction message.
The method according to claim 4, wherein before the calling user equipment receives the indication message playing a traditional ringback tone, further comprising:

The calling user equipment negotiates SDP with the CRBT server or the telephone application server.
A method for controlling video ring back tone in a call, characterized in that the method includes:

The CRBT server receives the request message sent by the calling user equipment to close the video CRBT in the call;

The CRBT server stops playing the video CRBT and sends a response message to the calling user equipment to turn off the video CRBT.
The method according to claim 6, wherein the request message is an update message, and the update message carries an instruction to turn off the video color ring back tone.
The method according to claim 6, wherein the request message is an update Update message, and the port number of the audio and video media lines of the SDP in the Update message is 0.
The method according to claim 6, wherein after the CRBT server receives the request message sent by the calling user equipment to turn off the video CRBT, the method further includes:

The color ring back tone server queries a permission configuration. When the permission configuration allows the video ring back tone to be turned off, the color ring back tone server stops playing the video color ring back tone and sends a response message to the calling user equipment to close the video color ring back tone.
The method according to any one of claims 6-9, further comprising:

The CRBT server sends an instruction message to play a traditional ringback tone to the calling user equipment.
The method according to claim 10, wherein before the CRBT server sends the indication message of playing a traditional ringback tone to the calling user equipment, the method further comprises:

The CRBT server negotiates SDP with the calling user equipment.
The method according to any one of claims 6-9, further comprising:

The CRBT server sends an INFO message to the phone application server, where the INFO message carries an instruction for the calling user equipment to play a traditional ringback tone.
The method of claim 12, further comprising:

The telephone application server receives the INFO message;

The telephone application server sends an instruction message to the calling user equipment to play a traditional ringback tone.
The method according to claim 13, wherein before the telephone application server sends the indication message of playing a traditional ringback tone to the calling user equipment, the method further comprises:

The telephony application server negotiates SDP with the calling user equipment.
A calling user equipment, characterized in that the calling user equipment includes: a sending module, a receiving module and a processing module;

The sending module is used to send a request message to close the color ring back tone of the call to the color ring back tone server;

The receiving module is configured to receive a response message returned by the color ring back tone server to close the video color ring back tone;

The processing module is configured to stop playing the video color ring back tone.
The calling user equipment according to claim 15, wherein the request message sent by the sending module is an update Update message, and the Update message carries an instruction to turn off the video color ring back tone.
The calling user equipment according to claim 15, wherein the request message sent by the sending module is an update Update message, and the port number of the audio and video media line of the SDP in the Update message is 0.
The calling user equipment according to any one of claims 15-17, characterized in that

The receiving module is also used to receive an instruction message for playing a traditional ringback tone;

The processing module is also used to play a traditional ringback tone according to the instruction message.
The calling user equipment according to claim 18, wherein before the receiving module receives the indication message of playing a traditional ringback tone, the method further comprises:

The processing module is also used to negotiate multimedia SDP with the CRBT server or the telephone application server.
A color ring back tone server, characterized in that the color ring back tone server includes: a receiving module, a processing module and a sending module;

The receiving module is configured to receive a request message sent by the calling user equipment to close the video ring back tone in the call;

The processing module is configured to stop playing the video CRBT;

The sending module is configured to send a response message to the calling user equipment to turn off the video color ring back tone.
The color ring back tone server according to claim 20, wherein the request message received by the receiving module is an update Update message, and the Update message carries an instruction to close the video color ring back tone.
The color ring back tone server according to claim 20, wherein the request message received by the receiving module is an update Update message, and the port number of the audio and video media line of the SDP in the Update message is 0.
The color ring back tone server according to claim 20, wherein after the receiving module receives the request message sent by the calling user equipment to close the video color ring back call, the method further includes:

The processing module is used to query a permission configuration after the receiving module receives the request message sent by the calling user equipment to close the video color ring back tone; and is also used when the permission configuration allows the video to be closed CRBT, stop playing the video CRBT.
The color ring back tone server according to any one of claims 20 to 23, characterized in that

The sending module is also used to send an indication message to the calling user equipment to play a traditional ringback tone.
The method according to claim 24, wherein before the sending module sends the indication message of playing a traditional ringback tone to the calling user equipment, the method further comprises:

The processing module is also used to negotiate SDP with the calling user equipment.
The color ring back tone server according to any one of claims 20 to 23, characterized in that

The sending module is further configured to send an INFO message to the phone application server, where the INFO message carries an instruction to play a traditional ringback tone for the calling user equipment.